Length-weight relationship of 55 species of fish caught by arrowhead fixed traps “currais” in the coast of pernambuco (Brazil)

Abstract

The length-weight relationship (LWR) of 55 species was estimated in captures conducted in arrowhead fixed traps off the northern coast of Pernambuco (Northeast, Brazil) using frequentist and Bayesian statistical approaches. The fish were obtained between the months of May 2014 and November 2020, with one or two days of sampling each month. The most diverse families were Carangidae and Haemulidae with 13 and 10 species, respectively. A new maximum length was recorded for Oligoplites saurus. Except for Odontoscion dentex, all other species exhibited condition factor values greater than 1.00. The species Chloroscombrus chrysurus, Diapterus auratus, Diapterus rhombeus, Harengula clupeola, O. saurus, and Opisthonema oglinum showed continuations of their estimates from previous Bayesian analyses, contributing to the improvement of data for these species.